There is no recommended upper limit on the amount of cardio exercise you should do on a daily or weekly basis. However, if you push yourself hard with every workout, then skipping a day or two each week to rest may help you avoid injury and burnout.
To check your pulse at your wrist, place two fingers between the bone and the tendon over your radial artery — which is located on the thumb side of your wrist. When you feel your pulse, count the number of beats in 15 seconds. Multiply this number by four to calculate your beats per minute.
During cardio exercise such as running, your heart rate increases. Your heart rate while running can be a good measurement of how hard you're working. As your pace and work rate increase, so does your heart rate. Blood circulates to your muscles so they can get the oxygen and nutrients they need to keep going.
To determine your maximum heart rate, subtract your age from 220. For example, a 35-year-old woman's maximum heart rate is 220 minus 35 — or 185 beats per minute. To enter the fat-burning zone, she'd want her heart rate to be 70 percent of 185, which is about 130 beats per minute.
Your resting heart rate is the number of times your heart beats each minute when you're not active. The normal range is between 50 and 100 beats per minute. If your resting heart rate is above 100, it's called tachycardia; below 60, and it's called bradycardia.
The best way to burn body fat is through cardio exercises such as running, walking, elliptical training, and bicycling. With these exercises, burning stomach fat, shedding love handles, and building a six pack is completely do-able.
Can your heart rate reveal your risk for a heart attack? A very high or very low heart rate may reveal your risk for heart attack. For most people, a heart rate that's consistently above 100 beats per minute or below 60 beats per minute for nonathletes should prompt a visit to a doctor for a heart health evaluation.
When to see a doctorYou should visit your doctor if your heart rate is consistently above 100 beats per minute or below 60 beats per minute (and you're not an athlete).
For example, a 10- to 15-minute brisk walk typically elevates the heart rate to 110 to 120 beats per minute. Also, the sinus node increases the heart rate when the body is stressed because of illness. In all of these circumstances, the heart rate increase is a normal response.
Afib or Panic Attack? A single panic attack can last a few minutes or an hour. A type of arrhythmia called supraventricular tachycardia (SVT) can make your heart beat as much as 150 to 250 times a minute. This is the heart arrhythmia most likely to be mistaken for a panic attack.
If your heart rate exceeds 185 beats per minute during exercise, it is dangerous for you. Your target heart rate zone is the range of heart rate that you should aim for if you want to become physically fit. It is calculated as 60 to 80 percent of your maximum heart rate.
It is possible to exceed the upper limit of your zone without any ill effects, as long as you do not have coronary artery disease or are at risk for a heart attack. What it may do, though, is leave you with a musculoskeletal injury. Exercising above 85% of your target heart rate could bring you sore joints and muscles.
By doing these 4 things you can start to lower your resting heart rate and also help maintain a healthy heart:
- Exercise more. When you take a brisk walk, swim, or bicycle, your heart beats faster during the activity and for a short time afterward.
- Reduce stress.
- Avoid tobacco products.
- Lose weight if necessary.
Studies have shown that people who work out regularly have resting heart rates about 10 beats per minute slower, on average, than sedentary people, and well-trained athletes generally have heart rates 15 to 20 beats lower than average.
Pushing your body to the max day after day can stress your heart and raise your risk for a type of abnormal heart rhythm called atrial fibrillation, or A-fib, which ultimately can lead to heart failure or a stroke, according to the review, which analyzed 12 studies on A-fib in athletes and endurance runners.
